Dual head toothbrush



FIG. 1 is a perspective view of a dual head toothbrush showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a perspective view of a second embodiment of my new design, the second embodiment differing from the first embodiment only in the configuration of the bristles; and,

FIG. 9 is a perspective view of a third embodiment of my new design, the third embodiment differing from the first embodiment only in the configuration of the bristles. 

The ornamental design for a dual head toothbrush, as shown and described. 